How To Use Assist Light on the Phase One XF Camera How To Use Assist Light on the Phase One XF Camera 11th September 2015 Steve Martin Find out how to use the Assist Light auto-focus feature on the Phase One XF Camera. 0 Newer How To Set Automatic Limits on the Phase One XF Camera View all posts Older Virtual Hands-On with the Phase One XF Camera Comments (0) Leave a reply Click here to cancel the replyYour email address will not be published. Required fields are marked *CommentName * Email * Website This site uses Akismet to reduce spam. Learn how your comment data is processed.